Advertising machine



' J. W. DUVAL.

ADVERTISING MACHINE. APPLICATION FILED APR. 16. 1920. RENEWED APR. 13,1921.

1,420,627 Patented June 27,

12 SHEETS-SHE 1 WIZuz/ah BY Myra J. W. DUVAL.

E ADVERTISING MACHINE.

EAPPLICATXON'FILED APR. 16.1920. RENEWED APR. I3, 1921.

Patented June 27, 1922.

I2 SHEETS-SHEET 2.

WITNESSE INVENTOR ATTORNEY 1..w. DUVAL.

ADVERTISING MACHINE. APPLICATION FILED APR- 16. 1920- RENEWED APR. 13,I921.

Patented J u1 1e 27, 1922.

12 SHEETS-SHEET 3- zmwwa.

INVENTOR 6M ATTORNEY a MW Mm 5 i V w w m 9 Z I w r w a w o i q. Jm

J. W. DU-VAL.

ADVERTISING MACHINE.

APPLICATION FILED APR. 16, 1920. RENEWED APR. 13, 1921.

PatentedJune 27 1922. S-HEET 4.

l2 SHEETS in i J. nmawi.

INVENTOR W v ATTORNEY BY my J. W. DUVAL.

' ADVERTISING MACHINE. APPLICATION HLED APR.16. 1920. RENEWED APR- 13,1921;

1 ,420,627, Patented June 27, 1922.

I2 SHEETS.-SHEET 5.

W ITNESSES:

J. W. DUVAL.

- ADVERTISING MACH|NE. APPLICATION FlLED APR. re, 1920.- RENEWED APR.13,1921.

1,420,, 27 Patented June 27, 1922.

12 SHEETSSHEET 6r WITNESSES:

5/. Wfiuva I I I I ',NVENTOR 1. ,w. D UVAL.

ADVERTISING MACHINE. v APPLICAHON FILED APR.-16, 1920- RENEWED APR. 13.T92!- 1,420,627. Patented June 27, 1922.

12 swans-sum 2'.

I. in? J/ L I zm wrrmasscas:

INVEN OR ATTORNEY J. W. DUVAL.

ADVERTISING MACHINE. APPLICATION HLED APR.16, 1.920. RENEWED APR. 13,I921.

1,420,627. Patented June 27; 1922.

12 $HEETS-SHEET 8.

QgyiE/Q Y v WDmm-.

INVENTOR ATTORNEY 1. w. DUVAL. v ADVERTISING MACHINE. APPLICATlON FILEDAPR. 16, 1920- RENEWED APR. 13,1921.

1,420,627. Patented June 27, 1922.

.12 SHEETSSHEET 9.

WITN SSES J. W. DUVAL. ADVERTISING MACHINE. APPLICATION HLED APR. 16,I920. RENEWED APR. I3, 1921. 1,420,627.

INVENTOR ATTORNEY wlTNEssESt 'J. W. DUVAL.

ADVERTISING MACHINE. APPLICATION HLED APR.16, 1920. RENEWED APR. 13,1921.

. citizen of the United States, residing at I lGE.

JOHN w. DUVAL, or PITTSBURGH, PENNSYLVANIA.

ADvnn'TIsING MACHINE.

To all w ham it may concern:

Be it known that I, JOHN W. DUVAL, a

Pittsburgh, in the county of Allegheny and State of Pennsylvania, haveinvented new and useful Improvements in Advertising Machines, of whichthe following is a specification.

This invention relates to advertising machines and has for an object theprovision of a machine in which a number of advertisements areconsecutively and automatically brought into view, novel means beingprovided for the accomplishment of this purpose. Another object is theprovision of an advertising machine in Which the display matter iscarried by a number of curtains, means being provided for bringing thecurtains into position in regular order and unrolling them in the mannerto present the advertising matter thereof to View.

Another object of the invention is the provision of means forilluminating the advertisement when the latter is brought fully intoview, said illumination being eXtinguished after a predetermined period,so that the intermediate intermittent operation of the illuminatingmechanism will serve to curtains, which may be operated inconjuncattract attention to the advertising matter displayed. I

Another object is the provision of a plurality of directory orinformation sheets or tion with the advertisement'to attract attentiontothe machine, the sheets or curtains being adapted to be brought intoview for inspection when desired.

Another object is the provision of novel means for selecting theparticular informacompanying'drawings.

tion sheet or curtain, so that a person desiring certain information mayset the machine and release its operating mechanism, whereupon the sheetor curtain selected will be automatically brought into view. I Otherobjects and advantages of the invention will appear as the followingdescription is read in connection with the ac- In the drawings:

Figure 1 is a front elevation of the invention. 7 I

Figure 2 is a side elevation of the same.

V Figure 3 is a section taken approximately Specification of LettersPatent.

7' on the line 3-3 of Serial No.,461,149.

nisms.

Figure 5 is a side elevation of the subject matter of F igure #1.

Figure 6 is a sectional view taken hori a point a zontally through. themachine at prommately on the line 6-6 of Figure 1.

Figure 7 isa sectional view on the line 7-7 of Figure 6.

Figure 8 is a similar of Figure 6. v i I Figure 9 is a like view on'theline 99 of view on the line 8-8 F igure 6. r V

F igure 10 1s a fragmentary sectional ele- -vat1on showing theinformation sheets or,

view showing in 1 v Patented J line 27, 1922; Application filed April'16, 1920, Serial No. 374,422. Renewed April 13, 1921.

so, a

curtains and the selective mechanism therefor.

Figure 11 is a horizontal sectional view on the line 1111 of Figure 10,

Figure 12 is a section on the line 12-12 of Figure 10.

Figure 13 is'a horizontal sectional View through the upper'portion'ofthe cabinet and showing the advertisingsheets or curtains 1n pla 1 IFigurelt is a fragmentary front elevation of the mechanism shown inFigure 13.

F gure 15 is an end view of the same.

F igure 16 is a fragmentary plan view of the reversing mechanism used inconnection with the advertising sheets or curtains.

Figure 17 is a front elevation of the same.

Figure 18 is a fragmentary elevation of the selective mechanism for theinformation sheets or rolls. V

Figure 19 is a section on the line 1919 the selective mechanism for theinformation sheets or curtains. r

Figure 23 1s an end view showlng the lockmg mechanism. i

, Figure 24 is a fragmentaryelevation of the curtain chain and thesheets or curtains carried thereby.

Figure 25 is a view at right angles to Figure 24.

Figure 26 is an end view of the mechanism shown in Figure 24.

Figure 27 is a similar view looking at the opposite end of the mechanismshown in Figure 24.

'Figure 28 is an enlargedview of the cam used in the advertisingmechanism.

Figure 29 is a similar view of the cam used in the informationmechanism.

Figure 30 is a diagrammatic view showing the contacts and circuits forlighting the lamps which illuminate the advertising sheets or curtainsduring the pause of the carrying plate at each operation of theadvertising mechanism.

Figures 31 and 32 are detailed perspective views of the chain carriedbracket links.

lVhile the invention is herein shown and described as an advertisingdevice, it will be apparent from an understanding of the same, that itis susceptible of various other uses and it is not the purpose of thepresent application to limit the invention to this use. For a clearunderstanding of the invention however, certain of the mechanism will behereinafter referred to as the advertising mechanism and certain otherparts of the mechanism hereinafter referred to as the directory orinformation mechanism.

In carrying out the invention there is provided a cabinet which isindicated at 18, the front of the cabinet being provided near the centerand at one side with an opening which is covered by a glass panel 19 toprovide a display opening for the information sheets or curtains to behereinafter described. The top of the cabinet is also provided with anopening, which is covered by a glass panel 20' to provide a displayopening for the advertising sheets or curtains, also to be hereinafterdescribed. The lower portion of the cabinet is provided with doors 21,by means of which access may be had to the interior, while the top ofthe cabinet is provided with a hinged cover or closure 22 for a likepurpose. The cabinet 18, reduces in width at its central point, so thata table or shelf 23 is rovided, the latter forming a support for n index23, around which moves a pointer 23" which is controlled by a hand wheel24. n ending through the table or shelf 23, is :1 operating knob 25,both this knob and the n 1 wheel 24 controlling the operation'ofinformat on mechanism, as will be herenafter apparent.

Located within the cabinet and secured to he base thereof, is a suitablemotor 26, the "baft of the motor carrying a pinion 27, which operates amain drive shaft 28, through the medium of a gear 29. The shaft 28 ismounted in suitable bearings 30 secured to the base of the cabinet andhas secured thereon a gear 31, having a relatively wide face. Meshingwith the gear 31, is a gear 32 the latter being loose upon a countershaft 33, which is mounted for rotation in bearings 34 also secured'tothe base of the cabi net. Each side of the gear 32 is provided with anextended hub, the outer end of which is formed with a clutch face, oneof which is adapted to engage a clutch member 46 fast upon the shaft 33and the other a clutch face formed on a bevel pinion 55 which isrotatable upon the shaft 33. A

Also secured upon the shaft 28 is a pinion 35, the latter driving a gear36, which is mounted on a short shaft 37, which rotates in bearings 38.The shaft 37 is further provided with a pinion 39 which drives. a gear40. This gear is mounted upon a short shaft 41, which operates inbearings 4.2. The shaft 41 also has mounted thereon a collar 43 which isprovided with a cam groove 43 and operating in the groove is a roller43*, which is mounted upon one end of a lever 44. This lever is pivotedat 45 upon the base of the cabinet and its opposite end is connected toone of the hubs of the gear 33 as indicated at 45.

From the foregoing description it will be seen that rotation of thecollar43 through the reduction gears just described will,

through the cam groove 43 rock the lever the sprocket wheels 50 andreverses the.

direction of travel of the chains 51 and 51, which pass over saidsprockets, by shifting the lever 44 in opposite directions, so as toregulate the direction of rotation of the shaft 49 and cause the chainsto alternately travel in opposite directions.

Mounted within the upper end of the cabinet is a plurality of centrallydisposed shafts 74, 75 and 76, the shaft 74 and the shaft 49 havingloosely mounted thereon sprockets 72. Passing over these sprockets arechains 64 and chains 64, which are spaced apart to provide lower andupper chains respectively, a pair of these chains being mounted at eachend of the, display opening or panel 20. These chains are driven by asprocket 72 and pass over sprockets 73 which are mounted upon the shafts75 and 76.

Each of the chains 64 and 64 comprise bracket links'65 and 65*, theselinks alter,- nating with the usual chain links and being connected byrods 70, which extend from the links of the chain 64 to the chain 64*.The bracket links 65 are each provided with a circular opening 66, whilethe bracket links 65 of the chain 64 are provided with notches 69, so asto provide for mounting 5 between the links of the upper chain 64 andthe lower chain 64, a plurality of spring controlled sheets or curtains67 as shown in Figures 24 and 25 of the drawings. These sheets orcurtains are provided along their outer edges with rods 68, which project beyond the chains and when the sheets or curtains are rolled, areadapted to engage hooks 68 provided in the ends of the bracket links.

Through the mechanisml'just described *these sheets or curtains areadapted to be consecutively brought into position at opposite ends ofthe display opening and to rest or pause in such position for apredecurtains are unrolled over the display opening. To accomplish thisthere is provided a carrying plate 53, the latter being secured at theopposite ends of the chains 51 and 51 and to be moved backward andforward across the display opening by the operation of the chains aspreviously described. For the purpose. of engaging thesheets orcurtains,-the carrying plate 53 is provided ad- 'jacent each endwith'oppositely extending hooks 53, these hooks being adapted to engagethe projecting ends of the rods 68 and to unwind the curtain of the rodso engaged and carry the latter across the dis play opening. When thecarrying plate 53 reaches the opposite side of the opening and startsupon its reverse movement, the opposite hooks 53 will engage the end ofthe rods 68 upon that end of the opening and carry its curtain acrossthe said opening upon the reverse movement of the plate. lVhen the plateagain reaches the end of its travel, the first curtain will be releasedand the chains 64 and 64 operated to posi- 55 tion another sheet orcurtain in the path of thehooks 53 To accomplish the movement of the curtains or sheets, there is provided a. lever 79 which is pivoted as at 80and carries a pawl 78. This pawl engages a ratchet 73 mounted upon ashaft 76, this mechanism being duplicated at each end of the displayopening. Prior to the end of travel of plate 53 the latter engages thefree end of the lever 7 9, so as to move the sprocket 7 3 a distancetermined period whereupon, the sheets or of one tooth, this movementbeing suflicient to bring the next advertising sheet or curtain intoposition for engagement with'thehooks of the plate 53. The movement ofthe lever 79 is resisted by a spring 82, while the lever in onedirection.

56 the latter being adapted to a stop 81 serves to limit the movement ofa pair of spaced collars 60. When the chain 51 reaches the end of itsmovement, the lug 56 will engage one ofthe lugs 57 to cause one. of thecollars 60 to move into engagement with the lever 61,which is secured toa shaft I 62. This shaft is provided'wit'h a lug or finger 63 whichengages a groove inzthehub of the gear 32, shifting the said gear to aneutral position between the clutch member 46 and. the clutch member ofthe beveled pinion 55, thereby, causing a pause or tarry n the operationof the mechanism and leavmg the sheets or'curtains atrest before'thedisplay opening. for a predetermined length of time, or until theoperation of the shift ing levers 44 moves the gear 32 into, engagementwith one of the clutch members The main power shaft 28 also has securedthereon a gear 83, which engages a gear 84, loosely mounted upon acounter shaft 85 the latter operating in bearings 86 secured to the baseof the cabinet. The gear 84 is provided upon each face with an ex-'tended hub, to provide a ratchet member,"

the latter being adapted to'engage a ratchet member formed on the hub ofa bevel gear 146 which is loose on the shaft 85 and a ratchet member150fastupon said'shaft.

A hand wheel 24 is secured upon the upper;

end of a short vertical shaft 87, which'is operated in bearings carriedby the frame and at the lower end of theshaft 87 is a bev' eled gear 88.gear 89, which is provided at its rear with This gear engages a bevel anextended'hub 89 and extending-from the opposite face of this "gear is'asleeve 89". This sleeve has securedupon its outer end a drum 89, whichcarries a segmental lug 90. The gear 89 is mounted upon the shaft'96,

which is mounted in bearing 91 locatedwithin the." cabinet. A ratchetwheel 92 is secured to the shaft 87 ofthe hand wheel,

- the said ratchet being engaged'by a dog 93,

which is 'pivotally mounted as indicated at 94 and is held in yieldingengagement with the teeth of the ratchet wheel 92 by meansof spring 95.The shaft 96carries atone end a collar 97 which is fast thereon andsecured to this collar ,is one. end of a'coil spring, the opposite endof this springbeing secured to the hub of the bevel ear 89 p which isloose upon the shaft. 1\ ounted j upon the shaft 96 is a gear 99, oneface of which carries a segmental lug 100, which isad'aptedtolengage thelug 'of the drum 89." The gear 99 meshes with the pinion 101, which issecured-to the shaft 102, the q latter being operated in bearing 103.The

shaft. 102%. alsohas secured thereon sprocket wheels 104, over whichoperate chains 105 and 105?, similar in construction to 64 and 64described in connection with the advertising mechanism. The chains 105and 105" are adapted to carry sheets or curtains 200, whichare adaptedto have imprinted thereon. suitable indicia, for example, sections of abusiness or city directory. These sheets or curtains may bealphabetically arranged andithe index 23 upon the table or shelf 23 maycorrespond to the arrangement of the. information sheets or rolls 200.Thus, if it is desired to ascertain the location of a person orbuilding, the particular letter under which the person or building wouldbe classified, would be the point at which the indicator is adjusted forthe operation of the information mechanism, so as to cause theparticular sheet selected to appear before the display panel 19, as willbe hereinafter apparent.

The chains 105 and105 pass over idle sprocket wheels 107, which aremounted upon shafts 108and as before stated, these chains carry thespring controlled information sheets or curtains 200, which are similarto. the sheets or, curtains 67 and like these sheets or curtains carryrods 201. These rods are engaged by hooks secured to a. carrying plate109, the said plate being similar to the plate 53, except that the roden gaging hooks 202 are located only along the bottom edge of the plate:and while the plate 53 moves in a horizontal direction the plate 109moves vertically. This last named plate travels in metal guides 109which are secured upon posts 110, the saidplate being secured to chains111, which pass over sprocket wheels 112 secured to the shaft 113, thelatter operating in bearings 114. The chains 111 are driven by sprocketwheels 115, which are secured toa shaft 116, which operates in bearings117 mounted upon the base of the cabinet. The shaft 116 is driven bybeveled gear 118, which is in turn driven by beveled gear 119 secured toone end of a shaft120. This shaft is supported in bearings 121 and isdriven by a bevel gear 122,

the latter engaging the beveled pinion 146 which is loose on the shaft85 and bevel pinion 151 fast on said shaft. The hub of the gear 84 isengaged by one end of a lever 144, which ispivotally mounted as shown at145. The opposite end of-this lever engages a cam groove 143*, provided,in a collar 143 mounted upon a shaft 141. This cam is illustrated inFigure 29 of the drawings. The shaft 141 carries a gear 140, whichengages thepinion. 138 mounted upon the shaft 137,

upon a pivot 126 carried by the frame and to the opposite end of thesaid lever there is pivotally secured one end of a connecting rod 127.The opposite end ofthis rod is connected to one arm of the bell crank128 the other arm of the bell crank having secured thereto one end ofthe connecting rodv 129, which is in turn connected to a lever 130secured upon the shaft 131. This shaft is supported inbearings 132 andhas mounted thereon a shifting finger 133, which engages a groove in thesleeve 134 having a clutch at one end thereof. This sleeve is slidablymounted upon. the main drive shaft 28, with j which it rotates and whenthe said sleeve engages the toothed hub of a pinion. 135, which is looseon the shaft 28 it willdrive the said pinion to operate the gear 136.

After the indicator has been properly set for the information sheet orcurtain requiredv the knob 25 is pressed downward so as to shift theclutch 134 through the shaft 131 and the finger 133 just described. Thiswill cause the clutch 134 to rotate the gear 1335 upon the main driveshaft 28-and operate the gear 136 and the gear 140. This will 7 operatethe cam'143, which shifts the lever 144, forcing the gear 84 to theright of Figure 6 of the drawings so as to engage the hub of the bevelpinion 146, this rotates the gear 122 in one direction, causing thecarrier plate 109 to descend and return the information sheet previouslyselected. After delivering the sheet, the plate 109 strikes a lockingbar 147, which has one end pivoted to the end of the shaft 96 and theother end held by a spring 148. This locking bar is provided with-teethor projections 147 that fit into the gear 149 secured to the shaft 102.When the locking bar147 releases the gear 149, the shaft 102 will berevolved by the tension of the gear spring 98 to bring the desired rollinto position so that the rod carried by the roll may be engaged by thehooks of the plate 109. The lever 144 will then have been operated tomove the gear 84 to neutral position. The said lever is then shiftedfrom the cam to opposite or left side of the clutch and engaged with theclutch member 150, which is secured to the shaft 85. This shaft hassecured thereon a beveled pinion 151 which meshes with the gear 122. andoperates the latter in a reverse direction "and causes the carrier plate109 to. ascend and carry the information sheet or curtain to a positionoverthe display opening 19. hen the carrier plate 109 ascends, the bar147 engages the gear 149 and holds the information mechanism inposition. an appreciable period before moving -it When at its highestpoint, the bar 109 is yieldingly held by a spring clip 203 or otherdesired means and the gear 84 is moved to a neutral position. Mountedupon the shaft 131 is a pawl 152, which is engaged by a lever 153,supported upon a pin 154, the

leverl53 being held in position by a spring 155. A pinl-56 carried bythe lever 153, is engaged by' a pin 156 secured to the gear 140. Thisreleases the pawl 152 and throws '-motor 26 supplies power for theoperation of the mechanism, the advertising mech the clutch 184 inneutral positionand stops the information mechanism, On the connectingrod 127, is a'collar 158, having a pin A 158 ,the latter fitting intoonearm of the bell crank 159. The'other arm of the bell crank engages alocking bar 160 pivoted at one end to the frame as at 161, the said barhaving a spring 162 secured at its other end. This locking'bar has teeth160 which fit into the gear 163 on the shaft 87 thereby holding the handwheel 24 with its pointer locked as long as the mechanism of theinformation sheets or curtains is in operation.

-Loca'ted within the upper" end of the cabinet, is a source of light,preferably in the form of an incandescent lamp 205. Th s lamp, isconnectedwith any suitable source of electric current and is included ina air cuit, in which-there is also included a pair of stationarycontacts 206. One of these stationary contacts is located at each end ofthe display opening 20 and is adapted to be engaged by a movable contact207, which is carried by each of the levers 79 whlch operate the ratchetfor moving the advertising rolls step by step. It will be thus seen thatwhen the carrying plate 53 engages the end of the lever 7 9 at the endof its travel, the said lever will close the contacts 206 and 207 atthat end of the cabinet and light the lamp 205, which will remainllghted during the pause of the advertising sheet or ourtain. Upon thereturn movement of the plate 53, the contacts will be broken and thelamp extinguished, remaining in such condition until the clrcuit isclosed by contacts 206 and 207 upon the opposite side of the cabinet.Thus, an intermittentlighting and extinguishing of the lamp 205 isefi'ected.

It is believed that when the foregoing des'cription is read'inconnection with the accompanying drawings, the, constructlon, operationand advantages of the invention will be apparent. The right is hereinreserved to make such changes as properly fall within the scope of theappended claims. 'In' the operation ofthe inventlon, the

anism being operated thereby to bring one of the display curtains beforethe glass panel 20 and permit it to pause or tarry for positionedtopresent the same within the opening in unrolled position.

2. Amachinc embodying a cabinet having a display opening therein, aplurality of operation of said mechanism being in neutral position.'Operation of the knob 25 I however, will shift this clutch so as toreceive power from the motor and as the in- I dicator'has-beenpreviously set, the mechanlsm will be operated to bring the desiredsheet into display position in the manner before stated.

4 Having thus described my invention what I claim as new is: H

1. A machine embodying. a cabinet having a display opening therein, aplurality of spring controlled normally rolledcurtains, oppositelymovable rotatable means for consecutively moving the curtains intoposition at the end of the display opening, and means engageable withthe f curtain so spring controllednormally rolled curtains, means forconsecutively moving the curtains into position at the end of thedisplay open ing and automaticallyoperated means including spacedreciprocatory chains engageable. with the curtains so positioned topresent'the same within the opening in unrolledposition.

' 3. A machine embodying a cabi'net,-having a display opening therein,automatically operated curtain carrying mechanism locat- 7 ed atopposite ends of-the opening, spring controlled normally rolled curtainscarried by said mechanism, and automatically operated curtain engagingmembers movable backward-and forwardacross saidopening,

means for operating the curtain carrying mechanism to bring one of thecurtains into position at each of the openings in the path of movementof the curtain engaging memher, and means for releasing the curtain.

4. A.machine embodyinga cabinet having a display opening therein, spacedcurtain carrying ichains located .at opposite ends'of said" opening,springcontrolled nor-. mally rolled curtains carried by said chains,

an automatically operated curtain engaging member mounted forreclprocation across. said openlng, means operated by the curta1nengaging member to bring a curtain lnto position for engagement by saidmember and means for releasmg the curtain at each end of thestroke.

5. A machine embodying a cabinet hav ing a display opening therein,spaced Jcurtain carrying chains located at opposite ends of saidopening, spring controlled normally rolled curtains carried by saidchains, an automatically operated plate movable'across said opening,means carried by said plate for engagement with a, curtain at each endof movement of said plate to display the curtain and means whereby thecurtain will be released after such display.

6. A machine embodying a cabinet having a display opening therein,spaced curtain carrying chains located at opposite ends of saidopenings, spring controlled normally rolled curtains carried by saidchains, an automatically operated plate movable across said openings, arod carried by each curtain and hooks carried by the plate forengagement with the rod to display the curtain before the opening andrelease the same after such display.

7. A machine embodying a cabinet having a display opening therein,spaced curtain carrying chains located at the opposite ends of saidopening, spring controlled normally rolled curtains carried by saidchain, an automatically operated plate movable across 7 said openings, arod carried by each curtain and cam controlled means for moving theplate automatically backward and forward across the opening and meanscarried by the plate for engaging and releasing a curtain at each end ofthe stroke.

8. A machine embodying a cabinet having a display opening therein, aplurality of spring controlled normally rolled curtains, means forconsecutively moving the curtains into position at the end of thedisplay opening, means engageable with the curtain so positioned to,present the same within the display opening in unrolled position, meanswhereby the curtain will be held in display position for a predeterminedperiod and means controlled by the curtain moving means for illuminatingthe curtain during such period.

9. A machine embodying a cabinet having a display opening therein,vertically movable rotatable members located in the cabinet below theopening, a plurality of display sheets mounted in said members,vertically movable means engageable with one of the sheets to positionthe same over said opening,'means for selectively positioning the sheetto be engaged, normally inactive operating mechanism, means whereby saidmechanism may be released to position the sheet selected in the path ofthe engaging means and across the display opening, and means including aspring pressed gear engaged locking lever located in the path of thesheet engaging means,

whereby the displayed sheet will remain in position until the nextoperation of the machine.

10. A machine embodying a cabinet having a display opening therein, arotatable member disposed below the opening, a plurality of displaysheets having one end secured to said member, a vertically movable barlocated adjacent the rotatable member, hooks carried by the verticallymovable bar for engagement with the opposite end of the sheet, means foroperating the rotatable member to selectively position the sheet to beengaged in the path of the hooks, whereby the engaged end of said sheetmay be elevated to place the latter over the display opening and meanswhereby the displayed sheet will remain in position until the nextoperation of the machine.

ll. A machine embodying a cabinet having a display opening therein,spaced conveyor chains located below the opening, a plurality of displaysheets, said sheets being normally arranged in roll condition, meanscarried by the chains for engagement with the sheets, vertically movablemeans located adjacent the conveyor chains, means carried by theverticallymovable means for: engagement with one end of the displaysheet to disengage said end from the conveyor chains, means foroperating the conveyor chains to selectively position the sheet to beengaged, whereby the engaged end of ranged in pairs for moving thecurtains into position at the ends of the display opening, means foroperating the chains in opposite directions to consecutively move thecurtains into position and means engageable with the curtains sopositioned, to present the same within the opening in unrolled condii13. A. machine embodying a cabinet having a display opening therein, aplurality of spring controlled normally rolled curtains, spaced endlesscurtain carrying chains arranged in pairs for moving the curtains intoposition at each end of the display opening, means engageable with thecurtains so positioned to present the same within the opening inunrolled position and means controlled by the last mentioned means forintermittently operating the.

opening, means engageable with the curtains so positioned to present thesame within the opening in unrolled position, a pivotally mounted leverlocated at each end of the opening, a ratchet mechanism r operatedthereby and means operable with the curtain engaging means for operatingthe levers to actuate the ratchet mechanism and intermittently operatethe curtain carrying chains.

15. A machine embodying a cabinet having a display opening therein,automatically operated curtain carrying mechanism located at oppositeends of the opening,

spring controlled normally rolled curtains carried-by said mechanism, anautomatically operated curtain engaging member movable opening in thepath of movement of said curtain engaging member and means included inthe intermittently operated curtain carrying mechanism for releasing thecurtain at each end of the stroke.

In testimony whereof I aflix mysignature.

' JOHN W. DUVAL.

'curt-ain into position at each end of the

